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https://issues.apache.org/jira/browse/MAPREDUCE-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dick King updated MAPREDUCE-323:
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Attachment: MR323--2010-08-27--1359.patch
Problems fixed. {{ant test}} in progress.
> Improve the way job history files are managed
> ---------------------------------------------
>
> Key: MAPREDUCE-323
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-323
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Amar Kamat
> Assignee: Dick King
> Priority: Critical
> Attachments: MR323--2010-08-20--1533.patch,
> MR323--2010-08-25--1632.patch, MR323--2010-08-27--1359.patch
>
>
> Today all the jobhistory files are dumped in one _job-history_ folder. This
> can cause problems when there is a need to search the history folder
> (job-recovery etc). It would be nice if we group all the jobs under a _user_
> folder. So all the jobs for user _amar_ will go in _history-folder/amar/_.
> Jobs can be categorized using various features like _jobid, date, jobname_
> etc but using _username_ will make the search much more efficient and also
> will not result into namespace explosion.
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